Hacking

North Korea's hack of Sony Pictures was "cyber vandalism" and not an act of war, US president Barack Obama says, adding that his government was considering putting North Korea back on a US list of countries that sponsor terrorism.

Iranian hackers infiltrate major airlines, energy companies, and defence firms around the globe over the past two years in a campaign that could eventually cause physical damage, according to US cyber security firm Cylance.

The Communications Minister Malcolm Turnbull explains to News Breakfast that under new laws, it will be up to copyright agencies, not ASIO or the Federal Police to chase people who 'illegally download Game of Thrones'.

Names, addresses, phone numbers and email addresses of roughly 76 million households and seven million small businesses were exposed when computer systems at JPMorgan Chase & Co were hacked in a recent cyber attack, the company said in a statement.

A newly-discovered security bug in a widely used piece of Linux software, known as Bash, could pose a bigger threat to computer users than the Heartbleed bug that surfaced in April, cyber experts have warned.